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|Ab urbe condita||2036|
|Balinese saka calendar||1204–1205|
|English Regnal year||11 Edw. 1 – 12 Edw. 1|
|Chinese calendar||壬午年 (Water Horse)|
3979 or 3919
— to —
癸未年 (Water Goat)
3980 or 3920
|- Vikram Samvat||1339–1340|
|- Shaka Samvat||1204–1205|
|- Kali Yuga||4383–4384|
|Japanese calendar||Kōan 6|
|Minguo calendar||629 before ROC|
|Thai solar calendar||1825–1826|
1409 or 1028 or 256
— to —
1410 or 1029 or 257
|Wikimedia Commons has media related to 1283.|
- September 22 – The first Mongol invasion of Burma begins. The fort at Ngasaunggyan is besieged, and falls to the invaders on December 3.
- King Ram Khamhaeng of the Sukhothai Kingdom creates the Thai alphabet, according to tradition.
- Kublai Khan's Yuan Dynasty invades the Khmer Empire of present-day Cambodia; King Jayavarman VIII decides to pay tribute rather than fight the invasion, buying peace and preserving the empire.
- Construction on the northern section of the Grand Canal of China is completed.
- The city of Guiyang is founded, in Yuan Dynasty China.
- January 2 – Most of Dublin, including St Patrick's Cathedral, is burned in a fire.
- June 1 – The young Rudolf II, Duke of Austria is forced to yield his claim on the Duchies of Austria and Styria to his elder brother, Albert I of Germany, under the Treaty of Rheinfelden.
- July 8 – Battle of Malta at Valletta: An Angevin fleet, sent to help put down a rebellion on Malta, is defeated by the fleet of Roger of Lauria.
- October 3 – Death by hanging, drawing and quartering is first used as a form of capital punishment (for the newly created crime of high treason) by King Edward I of England, in his execution of Dafydd ap Gruffydd, the last ruler of an independent Wales, at Shrewsbury.
- The first regulated Catalan Courts are reunited by King Peter III of Aragon, for the whole Principality of Catalonia. It becomes one of the first medieval parliaments that bans the royal power to create legislation unilaterally.
- An earthquake destroys two thirds of the cave city of Vardzia, Georgia.
- Construction of Caernarfon Castle, Conwy Castle, and Harlech Castle is begun in Wales by King Edward I of England, as a system of defenses against possible future Welsh uprisings.
- King Philip III of France causes a mass migration of Jews, when he outlaws their residence in the small villages and rural localities of France.
- Daniel of Moscow unites the west side of Russia, which ends the Kievan Rus' after 301 years, and begins the Grand Duchy of Moscow (the Mongol occupation will end in some areas as late as 1440).
Arts and culture
- The E. codex of the Cantigas de Santa Maria, a collection of Portuguese musical manuscripts, is dated to between 1280 and 1283.
- The Libro de los juegos, an early European treatise on board games (including chess, dice, and a version of backgammon), is commissioned by King Alfonso X of Castile, between 1251 and 1283.
- approx. date – Ramon Llull writes Blanquerna, the first major work of literature written in Catalan, and perhaps the first European novel.
- The Saxon city of Goslar starts making efforts to redeem its already issued annuities, a sure indication of financial difficulty, and maybe an early sign of the 13th century crisis.
- January 9 – Wen Tianxiang, Chinese prime minister (b. 1236; executed)
- April 9 – Margaret of Scotland, Queen of Norway (b. 1261; childbirth)
- October 3 – Dafydd ap Gruffydd, Prince of Wales (executed)
- November 30 – John of Vercelli, Italian Master General of the Dominican Order (b.c. 1205)
- December 15 – Philip I, Latin Emperor (b. 1243)
- date unknown
- Meynier, Gilbert (2010). L'Algérie cœur du Maghreb classique. De l'ouverture islamo-arabe au repli (658-1518). Paris: La Découverte. p. 161. ISBN 978-2-7071-5231-2.
- "Fires, Great", in The Insurance Cyclopeadia: Being an Historical Treasury of Events and Circumstances Connected with the Origin and Progress of Insurance, Cornelius Walford, ed. (C. and E. Layton, 1876) p27
- Place, Robert M. (2004). Buddha Tarot. Llewellyn Worldwide. p. 56.
- Munro, John H. (2003). "The Medieval Origins of the Financial Revolution". The International History Review. 15 (3): 506–562.